Belt-shifting mechanism.



PATENTBD OCT. 29. 1907.

R. GUSTAPSON. BELT SHIFTING MECHANISM. APPLIOATION FILED NOV. 1. 1905.RENEWED MAY 21 1907;

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INVENTOR Altomeyi 1on1, Bic, THE Mom-us PETERS can WASHING No.869,239.'PATENTED 0013.29.1907. A. R. GUSTAPSONJ BELT SHIFTING MECHANISM.

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UNITED STATES AXEL R. GUSTAFSON, OF CHICAGO, ILLINOIS.

BE LT-SHIFTING ME GHANISM.

Specification of Letters Patent.

Patented Got. 29, 1907.

Application filed November 1. 1905. Serial No. 285,426- Renewed May 21.1907. Serial No. 374.923-

To all whom it may concern:

Be it known that I, AXEL R. GUSTAFSON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful improvements in Belt-Shifting Mechanism, ofwhich the following is a specification.

This invention relates to belt shifters particularly adapted for usewith laundry machinery and especially to apparatus for starching shirtbosoms, and its prime objects are to provide means for automaticallycontrolling the reversing mechanism and to produce a slower and moreuniform motion of the reciprocating armswhi'ch carry the starchingroller. It will be noted that the automatic reverting mechanism does notinterfere in the least with the control of the reverse by means of thefoot acting upon the treadle in the usual Way.

The crank disks which impart motion to the rceiprocating arms haveheretofore received motion directly from the driving shaft; in thisimproved form the driving shaft is lowered and an intermediate gearinterposed, which has the result of slowing the motion, which isconsidered desirable, and at the same time producing a more uniformmovement of the starching roller, for the reason that the crank arms ordisks do not make a complete revolution but reciprocate in unison withthe movement of the reciprocating arms.

In the accompanying drawings, Figure 1 is a side elevation of a bosomstarching machine with the said im provements applied thereto. Fig. 2 isa fragmentary side elevation viewed from the opposite side. Fig. 3 is arear elevation, and'Fig. 4. is a plan view ofthe attachment forautomatically controlling the reversing mechinism.

Referring to the drawings, 1 is the base of the machine, 2 the frame and3, 4, the reciprocating or swing arms pivoted at their lower ends to theframe and in the upper ends of which a shaft 5, carrying a starchingroller 6, is journaled. A bracket 7 secured to the rear of the framecarries a shaft 8 on which are mounted two loose pulleys 9 and a fixeddriving pulley 10 and a smaller pulley 11 which drives the roller 6 bymeans of a belt 12. The pulleys 9 and 10 receive the usual straight andcrossed belts which are shifted to reverse the shaft. Motion is impartedfrom the driving shaft 8 to the arms 3, 4, by means of gears 13, 14, 15,16. The said gear 16 is segmental and is mounted on one end of a shaft17 which passes through and is journaled in the frame 2 and has on itsopposite ends crank arms 18. The gear and crank arms have crank pins andblocks 43 which work in slots in the arms 4 and 3 respectively.

The bracket 7 carries a rod 20 on which is slidably mounted a block 21,which carries a belt-shifting device 22. Motion is imparted to saidblock and shifting device by means of a rock shaft 23, gears 24, 25, arm26 on rock shaft 26, andlinks 27. Said rock shaft 23 is provided with atreadle 28 which is operated in the usual way by the foot. A link 29 ispivotally attached to the arm 3 by means of a bracket 30, the other endhaving a slot 31 in which a pin 32, in a rock arm 33, travels. Said linkhas coarse adjustment in holes 34 and a fine adjustment by means of aslot and bolt 35. The upper end of bracket 30 is slotted to allow ofvertical adjustment. An auxiliary link 36 is pivoted to link 29 by abolt 37 and has a slot 38 for a pin 39 on said arm 33. The lower end ofthe link 29 has a dog 40 pivoted thereto, the head of which normallyprojects across the slot 31. The said links will have a reciprocatingmovement corresponding with the motion of the arm 3 to which they areconnected, and when moving forward the rear end of the slot 38 willengage the pin 39 and rock the arm 33 forward, which, through theconnections already described, will act upon the beltshifting mechanismto reverse the driving shaft. At the end of the backward movement thedog 40 will engage the pin 32 and the said arm 33 will be rocked in theopposite direction, and the reversal will take place before the roller 6has reached the extreme limit of its excursion. Should it be desiredtogive the full movement to the said roller it is only necessary to raisethe head of the dog 40 by pressing upon the projecting end 41 by thefoot thus causing the said dog to pass over pin 32, the movementcontinuing until the gear 15 runs off the last tooth of the segment gear16 and the front end of slot 31 engages said pin. The machine will thenstop with the roller 6 at the extreme backward limit of its movement,when it will rest in the starch pan 42 until the shifting device isacted upon by means of the treadle 28 operated by the foot. The gears 15and 16 are then thrown in mesh by starting the arms 3 and 4 forward bythe treadle. As already mentioned the usual treadle action is in no wayinterfered with by this automatic attachment.

Having thus described my invention what is claimed as new and desired tobe secured by Letters Patent is 1. Thecombination with a drive shaft,swinging arms, and gearing between the shaft and arms including asegment gear, of a belt shifting mechanism for the shaft, connected toand automatically actuated by the arms, to reverse the shaft before thesegment gear is disengaged, and means to stop such automatic action, toallow the segment gear to run to disengagement.

2. The combination with a shaft, and a swinging arm driven thereby, of abelt shifting mechanism associated with said shaft, to reverse the same,and automatic con nections between said arm and mechanism, arranged tooperate the mechanism, and reverse the shaft at predetermined points,and manually operated means to disengage said connections.

3. The combination with a shaft and a belt shifting mechanism therefor,of an arm connected to and operated by the shaft and swinging in a planeat a right angle to the axis of the shaft, and a link carried by the armand having a sliding connection with said mechanism, arranged to operatethe same at the end of each stroke of the arm.

4. In a belt shifter, the combination with a treadle-and a rock shaft onwhich the treadle is mounted, of another shaft geared to said rock shaftand having a (rank arm, and movable shifter arms connected to said arm.

5. The combination with a shaft and a belt shifting mechanism thereforincluding a rocker, of swinging arm connected to and operated by saidshaft, and a link connecting the arm and rocker and having a slot andpin connection with the latter, arranged to operate the same at the endof each stroke.

(3. The combination with a reciprocating arm, and a rock shaftoperatively connected to a belt shifter and having a projecting arm, ofa link connected to the said arms, the connection of the link to one ofthe arms being by means of a slot and pin, producing intermittentoperation of the arm and its shaft.

7. The combination with a reciprocating part. and a rock shaftoperatively connected to a belt shifter and having a projecting arm, ofa link pivoted to the said part and having a slot and pin connection tothe arm, and a dog pivoted to the link and having its head extendingacross the slot and arranged to strike the pin, and movable to avoid thesame.

8. The combination with a swinging arm. and a shaft geared thereto, ofbelt shifting mechanism for the shaft, including a rock shaftoperatiwely connected to the shifter arm, a treadle on said rock shaft,for foot operation, antomatic connections between said rock shaft andthe swinging arm. and means to disengage the automatic connections.

1). The combination with a swinging arm, and a belt sh ng mechanismhaving a rocker arm, of a link connecting said arms and having a stopwhich throws the rocker in one direction, and an auxiliary linkconnected to said link and to the rocker arm and having a stop whichthrows the rocker in the other direction.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

AXEL R. GUSTAFSON. Witnesses SIGNO FELTSKOG, H. G. BATCHELOR.

